Improvement in swings



G. SILL;

SWING.

Patented Peb. 2,1 1869.-

NOE` 86,598.

u Q @J stimmt tant @met \g,ww

...www

@time GEORGE SILL, OF WILKINS, A SSIGNOR TO I-IIMSELF AND H. vI-I.

- NEGLEY, OF ELTSBUR'G, PENNSYLVANIA.

Letters Patent N 86,598, dated Feb/farm; 2, 1869.

IMPROVEMENT IN SWING-S.

The Schedule referred to in these Letters Patent and making part of thesama.

To all whom it may concern Be it known that I, GEORGE SILL, of Wilkins,in the county of Allegheny, and in the State of Pennsylvania, haveinvented certain new and useful Improvements in Swings;4 and. do herebydeclare that the following is a full, clear, and exact descripticnthereof, reference being had rto the accompanying drawings, and to theletters of reference marked thereon.

The nature of my invention consists in the construetion and generalarrangement of a swing, which will be hereinafter fully set forth.

-ln order to enable others skilled in the art t0 which my inventionappertains, to make and use the same, I will now proceed to describe itsconsti-notion and operation, referring to the annexed drawings, whichform a part of this speeiiication, and in which- Figure 1 is a frontelevation;

Figure 2, a side elevation in section; and

Figure 3, a section ofthe treadle, showing the manner of adjusting thesame.

A A represent the frame 3 B B, the swinging bars, near the lower ends ofwhich the seat, G, is placed.

The seat G-'is constructed of two bent pieces, one, a., forming seat andback, and the other, l), forming sidesiand arms.

rIhe piece c is, at its front end, secured to a c ross-V bar, c,connecting the. two swinging bars, andthe ends ofthe piece b aremortised through the swinging bars, the centre ot' said piece passingaround and supporting the back of the seat, thus giving to the seatgreat strength and rigidity.

To the lower ends of the swinging bars B B, the adjustable treadle D ispivotcd. y

The treadlc consists of two arms, d d, slotted at the rear ends, andconnected, at the front ends, by means ofthe foot-board E. f

A rod, f, passes through the lower ends of the two swinging bars, andpasses also through the slots on the arms d d, which are then secured bymeans of a notched metal plate, 71, pivoted, one to each arm, as showninfig. 3.

By this means the foot-board E'can bc placed closer to or farther fromthe seat, thus allowing the swing to be accommmlated as well to grown-upper- -sons as to children.

At the front ends ofthe. arms d d are pivoted metal bars yi i, whichhave two or more holes, in which rods k le are passed.

These rods connect the treadle D with an arm, m., projecting from asegmental wheel, E, which is pivoted, in some suitable manner, to across-bar, a, connecting the two swinging bars a suitable distance fromtheir upper ends.,- y

On the under side ofthe top cross-bar ofthe frame A, is placed astationary segmental wheel, F, which acts in connection with the wheelE, as will be hereinafter set forth.

A chain or belt, O, is secured to the arm m, and passes along the frontand upper `side of the wheel E, then along the rear side ot' the wheelF, and is secured to the top ofthe flame A.

The swing is operated by pressing'on the treadle4 with the foot, which,acting through the rods l: con the wheel E, causes the swing to movebackward, and, by releasing the pressure on the treadle, the swing movestbrward aga-in; and, by repeatedly pressing and release ing the treadle,the swing is operated with great/ease.

Instead of using the chain or belt O to connect the two wheels, E and F,they may be provided with cogs, gearing into each other, and said wheelsmay be either elliptical or circular segments, whichever may be deemedmost adwmtageous for the easier operation of the swing. y

Having thus fully described my invent-ion,

What I claim as new, and desire to secure by Letters Patent, is-

1. The treadl'e D, constructed as described, of the slotted arms d l andfoot-board e, and having on each arma notched-plate or bar, h, pivotedto the same, for the purpose of' adjusting the treadle, substantially asherein set forth.

2. The seat O, constructed, as described, oi' two bent pieces, one ofwhich forms the sides and arms,` and is mort-ised into the swinging barsB B, substantially as and foijthe purposes herein set forth.

3. The combination ot the stationary segmental wheel F. and pivotedsegmental wheel E, arranged and connected substantially asshown anddescribed.

4. Connecting the treadle D to the wheel E by means of the rods 7; 7.'.and .pivoted bars yi i, substantially as shown and described.

5. The combination ofthe swinging bars B B, seat C, adjustable treadlel), wheels E and F, and connecting-rods lair, all constructed asdescribed, and arranged to operate substantially as and for the purposesherein set i'orth. 1

In testimony that I claim the tbregoing, I have hereunto set my hand andseal, this 19th day of Deceniber, 1868.

GEORGE SILL; [L 8.] Witnesses:

L. G. BELL, M. E. Davison.

